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Commit | Line | Data |
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0fcfd160 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
4050c0df | 6 | #include "git-compat-util.h" |
0fcfd160 LT |
7 | |
8 | static void report(const char *prefix, const char *err, va_list params) | |
9 | { | |
10 | fputs(prefix, stderr); | |
11 | vfprintf(stderr, err, params); | |
12 | fputs("\n", stderr); | |
13 | } | |
14 | ||
ce88ac5b | 15 | static NORETURN void usage_builtin(const char *err) |
0fcfd160 LT |
16 | { |
17 | fprintf(stderr, "usage: %s\n", err); | |
5d1a5c02 | 18 | exit(129); |
0fcfd160 LT |
19 | } |
20 | ||
ce88ac5b | 21 | static NORETURN void die_builtin(const char *err, va_list params) |
39a3f5ea PB |
22 | { |
23 | report("fatal: ", err, params); | |
24 | exit(128); | |
25 | } | |
26 | ||
ce88ac5b | 27 | static void error_builtin(const char *err, va_list params) |
39a3f5ea PB |
28 | { |
29 | report("error: ", err, params); | |
30 | } | |
31 | ||
fa39b6b5 SP |
32 | static void warn_builtin(const char *warn, va_list params) |
33 | { | |
34 | report("warning: ", warn, params); | |
35 | } | |
39a3f5ea PB |
36 | |
37 | /* If we are in a dlopen()ed .so write to a global variable would segfault | |
38 | * (ugh), so keep things static. */ | |
39 | static void (*usage_routine)(const char *err) NORETURN = usage_builtin; | |
40 | static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin; | |
41 | static void (*error_routine)(const char *err, va_list params) = error_builtin; | |
fa39b6b5 | 42 | static void (*warn_routine)(const char *err, va_list params) = warn_builtin; |
39a3f5ea PB |
43 | |
44 | void set_usage_routine(void (*routine)(const char *err) NORETURN) | |
45 | { | |
46 | usage_routine = routine; | |
47 | } | |
48 | ||
49 | void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN) | |
50 | { | |
51 | die_routine = routine; | |
52 | } | |
53 | ||
54 | void set_error_routine(void (*routine)(const char *err, va_list params)) | |
55 | { | |
56 | error_routine = routine; | |
57 | } | |
58 | ||
fa39b6b5 SP |
59 | void set_warn_routine(void (*routine)(const char *warn, va_list params)) |
60 | { | |
61 | warn_routine = routine; | |
62 | } | |
63 | ||
39a3f5ea PB |
64 | |
65 | void usage(const char *err) | |
66 | { | |
67 | usage_routine(err); | |
68 | } | |
69 | ||
0fcfd160 LT |
70 | void die(const char *err, ...) |
71 | { | |
72 | va_list params; | |
73 | ||
74 | va_start(params, err); | |
39a3f5ea | 75 | die_routine(err, params); |
0fcfd160 | 76 | va_end(params); |
0fcfd160 LT |
77 | } |
78 | ||
79 | int error(const char *err, ...) | |
80 | { | |
81 | va_list params; | |
82 | ||
83 | va_start(params, err); | |
39a3f5ea | 84 | error_routine(err, params); |
0fcfd160 LT |
85 | va_end(params); |
86 | return -1; | |
87 | } | |
fa39b6b5 | 88 | |
46efd2d9 | 89 | void warning(const char *warn, ...) |
fa39b6b5 SP |
90 | { |
91 | va_list params; | |
92 | ||
93 | va_start(params, warn); | |
94 | warn_routine(warn, params); | |
95 | va_end(params); | |
96 | } |